You sound like a sales rep! Mag sulphate has an excellent reputation for transdermal absorption and has for decades,its called a mineral bath! And no you don't get what you pay for if are fooled by hype and promos, you get taken for your money! I quess once you buy into this and spend the money you want to believe the lies!
The supplement industry spends much time and effort to glorify and profit from recreating and repackaging simple and plentiful elements, the patch, what a great way to promote and dispense products of all kinds at a great mark up!